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Waves, Sound and Light
Chapters 10-13
106
Physics
9th Grade
01/17/2007

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Term
Period
Definition
The time required for one full wavelength to pass a certain point.
Term
Electromagnetic wave
Definition
A wave caused by a disturbance in electric and magnetic fields and that does not require a medium. A light wave.
Term
Diffraction
Definition
The bending of a wave as it passes an edge or opening.
Term
Trough
Definition
The lowest point of a transverse wave.
Term
Frequency
Definition
The number of vibrations that occurin a one second time interval.
Term
Reflection
Definition
The bouncing back of a wave as it meets a surface or boundary.
Term
Medium
Definition
The matter through which a wave travels.
Term
abiotic factors
Definition
Physical or nonliving parts of an enviornment.
Term
absolute age
Definition
actul age of a rock or a fossil.
Term
acceleration
Definition
a change in velocity.
Term
action potential
Definition
sudden change in the electrical charge of the neuron.
Term
abiotic factors
Definition
physical or nonliving parts of an enviroment.
Term
action-reaction force
Definition
equal but opposite forces that objects excert on each other.
Term
absolute age
Definition
actual age of a rock or fossik
Term
Adaptive Mutations
Definition
mutations that make an organism better suited to its enviroment.
Term
air mass
Definition
body of air that has a certain temperature moisture content, and pressure
Term
alpha particle
Definition
product of radioactive decay that consist of 2 protons and 2 neutrons.
Term
amino acids
Definition
molecules or carbon, hydrogen, oxygen, and nitrogen that serve as the building blocks of proteins.
Term
acceleration
Definition
a change in velocity
Term
acive transport
Definition
movement of molecules through the cell membrane against a concentration gradient, requiring the cell to use energy.
Term
analogous stuctures
Definition
body parts that have a similar function, but not a similar stucture.
Term
asthenosphere
Definition
layer fo the upper mantle that is made up of partially motten rock that can flow
Term
Air mass
Definition
Body of air that has certain temperture mositure content and pressure
Term
action potential
Definition
sudden change in a electrical charge of a neuron
Term
atom
Definition
the smallest particle of an element that has all properties of the elements.
Term
active tranport
Definition
movement of molecules through the cell membrane against a concentration gradient, requiring the cell to use energy.
Term
action-reaction forces
Definition
equal but opposite forces that objects exert on each other
Term
AMPLITUDE
Definition
Measure of the energy a wave carries
Term
abiotic factors
Definition
physical or nonliving parts of an environment.
Term
ATOM
Definition
The smallest particle of am element has all the propeties of the element
Term
adaption (adaptation)
Definition
a trait that improves an organism's chance for survival and reproduction.
Term
action- reaction forces
Definition
equal but opposite forces that objects exert on each other
Term
adaptive mutations
Definition
mutations that make an organism better suited to its enviornment.
Term
Atomic Mass
Definition
Mass equal of protons in the nucleus of an atom
Term
absolute age
Definition
actual age of a rock or fossil
Term
air mass
Definition
body of air that has a certain temperture. moisture content, and pressure.
Term
active transport
Definition
movement of molecules through the cell membran against a concentration gradient requiring the cell to use energy
Term
alpha particle
Definition
product of radioactive decay that consists of 2 protons and 2 neutrons.
Term
Atomic Number
Definition
number of protons in the nucleus of an atom
Term
acceleration
Definition
a change in velocity-
Term
adaption
Definition
a trait that improves a organism change for survival and reproduction.
Term
amino acids
Definition
molecules of carbon, hydrogen,oxygen, and nitrogen that serve as the building blocks of proteins.
Term
Average Acceleration
Definition
overall change in an object's velocity during a certain time period divided by that time period
Term
analogous structures
Definition
body parts that have a similar function, but not a similar structure.
Term
action potential
Definition
sudden change in the electrical charge of a neron
Term
adaptive mutation
Definition
mutation that make an organism better suited to its environment
Term
Cell
Definition
Basic unit of Stucture and function in all organisms
Term
asexual reproduction
Definition
reproduction taht involves only one parent organism/
Term
air mass
Definition
body of air that has a certin temperature mositurecontent and pressure
Term
asthenosphere
Definition
layer of the upper mantle that is made up of partially molten rock that can flow.
Term
action-reaction forces
Definition
equal but opposie frces that objects exert on each other
Term
Conductor
Definition
Materail that permits electricity or heat to pass through it easily
Term
alpha partical
Definition
product of radioactivedecay that consist of 2 protons and 2 neutrons
Term
atom
Definition
the smallest particle of an element that has all the properties of the element.
Term
atomic mass
Definition
mass equal to the number of protons plus the number of neutrons in the nucleus of an atom.
Term
amino acids
Definition
molecules of carbon hydrogen oxygen and nirogen that serve as the building blocks of proteins
Term
Conduction
Definition
Movement of thermal energy through direct contact of particles
Term
ADP
Definition
molecule formaed wwhen a phospshate is removed from an ATP molucule.
Term
amplitude
Definition
measure of the energy a wave carries
Term
atomic mass
Definition
mass equal to the number of protons plus the number of neutrons in the nucleus of an atom
Term
ATP
Definition
molecule that transfers the energy of chemical reactions within cells.
Term
Decomposer
Definition
organism that meets its food and energy needs by breaking dwn the remains of dead organisms
Term
average acceleration
Definition
overall change in an objects velocity during a certain time period divided by that time period.
Term
active transport
Definition
movement of molicules through cell membrain against a concentration gradient requarering he cell use energy.
Term
analogous stuctures
Definition
body parts that have a similar function but noy a similar stucture
Term
average acceleration
Definition
overall change in an objects velocity during a certain time period divided by that time period.
Term
axon
Definition
single long projection that extends from a carries messages away from the cell body of a neuron.
Term
behavior
Definition
way an organism responds to a stimulus.
Term
asexual reproduction
Definition
reproduction that involves only one parent organism
Term
Electron
Definition
negatively charged subatomic particle that is located outside the nucleus
Term
asthenosphere
Definition
layer of the upper mantle that is made up of partially molten rock that can flow
Term
beta particle
Definition
particle emitted from the nucleus of an atom during radioactive dcay taht has the same charge and mass as an electron.
Term
Energy
Definition
Ability of an object to cause a change in itself or surrondings
Term
atom
Definition
the smallest partical of an element that has all the properties of the element
Term
pulsating universe theory
Definition
scientific theory suggesting that once the universe stops expanding, it will begin to contract and collapse until it returns to its original state.
Term
big bang theory
Definition
theory that the universe formed from a tiny piece of compacted matter that was acted upon by an explosion.
Term
adaptation
Definition
a trait that improves an organisms chance for survival and reproduction
Term
radiation
Definition
energy in the form of electromagnetic waves; also the transfer of thermal energy by electromagnetic waves.
Term
Gravity
Definition
force of attraction,or pull,that every object in teh universe exerts on every other object
Term
wave
Definition
disturbance that transfers energy from one place to another.
Term
adaptive mutations
Definition
mutations that make as organism better suted to its enviroment
Term
Force
Definition
a push or a pull
Term
atomic mass
Definition
mass equal to the number of protons plus the number of neutrons in the nucleus of an atom
Term
weather
Definition
state of the atmosphere at a given time and place.
Term
work
Definition
force applied over a distance.
Term
bionomial nomenclature
Definition
means of identifying organisms with a teo-part name made up of its genus and species names.
Term
work input
Definition
work that you apply to a machine.
Term
atomic number
Definition
number if protons in the nucleus of an atom
Term
weight
Definition
measure of the force of gravity on an object.
Term
Latitude
Definition
the distance of location north or south the equator
Term
binary fission
Definition
type of asexual reproduction in which one parent splits in two form two identical daughter cells.
Term
voltage
Definition
electircal energy available for moving a charge.
Term
ADP
Definition
molecule formed when a phosphate is removed from an ADP molecule
Term
air mass
Definition
body of air that has a certain temperature moisture connt and pressure
Term
biogeochemical cycles
Definition
continious paths organic and inorganic chemicals through reservoirs in Earths lithosphere, hydrosphere, atmosphere, and biosphere.
Term
ATP
Definition
molecule that transfers the energy of chmical reactions within cells
Term
biotic factors
Definition
living parts of an enviornment.
Term
black dwarf
Definition
stage in the star life cycle formed from a white dwarf that has cooled.
Term
alpha parical
Definition
product of radioactiv decay that consists of2 protons and 2 netrons
Term
average average acceleration
Definition
overall change in an objects velocity during a certin time period divided by that time period
Term
black hole
Definition
small,extremely dense object with a pull of gravity so immense it prevents light fom escaping.
Term
axon
Definition
single long projection that extends from and carries messages away from the cell bodyof a neuron
Term
amino acids
Definition
molecules of carbon, hydrogen, oxygen, and nitrogen that serve as the buikding blocks of proteins
Term
amino acids
Definition
molecules of carbon, hydrogen, oxygen, and nitrogen that serve as the buikding blocks of proteins
Term
amino acids
Definition
molecules of carbon, hydrogen, oxygen, and nitrogen that serve as the buikding blocks of proteins
Term
budding
Definition
form a asexual reprodution in which a new organism grows from a small piece of parent organism.
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